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A. PELLETIEE.

Method of Laying-Pavement.

No. 242,689. "Patented June 7,1881.

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UNITED STATES` PATENT OEEICEC,V

ANTONIO PELLETIER, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO JOHN Gr. CAMPBELL, OF PRESCOTT, ARIZONA TERRITORY.

METHOD OF LYING PAVEMENTS.

SPECIFICATION forming part of Letters Patent No. 242,689, dated June '7, 1881. Application tiled December 6, 185,10. (No model.)

To all whom it may concern:

Be it known that I, AN'roNro PELLETIER, a citizen of the United States, residing at Washington, in the county of Washington and District of Columbia, have invented certain new and useful Improvements in Method of Laying Pavements;l and I do hereby declare the follo'wing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying' drawings, and to letters or figures of reference marked thereon, which form a partof this specification.

-This invention relates to an improved pavement and method of laying the same; and the novelty consists in the forms of the blocks and the manner of arranging the same with relation to each other and to the service to be performed, as will be more fully hereinafter set forth, and specifically pointed out in the claims. The object of the invention is to provide a pavementl both the foundation and pavement proper of which maybe removed, taken up, or replaced readily for repairs, orto obtain access to water or gas pipes andsewers without injury to adjacent portions of the pavement, and also in providing reversible blocks having important and useful distinguishing features, which form the pavement proper. A The invention consists, essentially, rst, in a paving-block formed of .concrete in the form of a right-angled parallelogram, having each of its upper and lower longitudinal and 'transverse edges beveled, and adapted to be readily reversed and present a new side as one becomes worn; second, in a foundation formed ot blocks of bton or concrete, of right-angled parallelogram form, laid in such a manner as to break jointsthat is to say, the rst row of blocks arelaid at an angle of forty-Eve degrees from the plane of thecurb, the corner of each block impin gin g thereon, and each block overlapping one-half of the adjacent block, and the second row of blocks similarly arranged with relation to each other, but each block placed at a right angle (ninety degrees) with the adjacent blocks of the first row, and so on until the space between the curbs is filled, it

beingunderstood,of course, thatthe triangular 5o spaces next to each curb are filled with proper blocks of same material; third, in a pavement laid upon a foundation, as described, formed `of concrete blocks of right-angled parallelogram shape, and having beveled upper and `to show the foundation. Fig. 2 represents a 65 longitudinal section, showing the foundation, surface-blocks, and intervening layer of sand; and Fig. 3, a perspective view of one of the surface or paving blocks. Fig. 4 shows, in dotted lilies, the bearing of the paving-blocks 7o upon the foundation-blocks.

Referring to the drawings, the letter A indicates the natural road-bed properly rolled and sanded for the reception of the foundation rectangular concrete blocks B, which are properly laid to break joints, as shown, and which may have their top and bottom edges beveled. After the foundation has been properly laid, a layer, C, composed of silicious sand is applied, and the paving-blocks D are laid, but according to 8o a different arrangement from that of the foundation-blocks. The latter are laid in rows, i each row parallel-With the plane of the curb, but each block -laid at an angle of forty-five' degrees from said plane, and the rows alternately arranged at such angle, while the pavy ing-blocks are laid at a right angle with the plane of the curb, each block bearing upon three or more (according to the size of said block) of the foundation-blocks, as shown in 9o Fig. 4.

The pavingblocks, D have each oftheir .upper and lower longitudinal and transverse prevents sliding or falling of animals employed in lighter and quicker service, as shown and described in my Patent No. 230,492, of 1880.

It Will be observed, however, that by beveling each and every of the upper and lower edges of the paving-blocksthey may be readily turned to present a new surface as soon as the surface in use has been worn down, and this feature has peculiar efficiency in places where frequent and heavy loads are passingz'. e., at railroad-depots, in front of wholesale 1stores, commission and Ware houses, and the ike.

It will further be observed that the bevel d upon opposite sides of the paving-blocks D may be of differentpitches-th atis to say, theincline upon one side may be greater than that upon the other, and this difference may be utilized in adapting the blocks for different uses, such as carriage-drives and heavy-draft streets, and also affords a choice of sides upon any given street to suit different eXigencies,

The bton for both or either the foundation or paving blocks may be of any desired description or material, constructed by molding and heavy pressure; but the invention is especially designed to l be used in connection with the bton or concrete compounds composed of broken stone or gravel, hydraulic lime of tiel, terra-alba, hydraulic lime or cement, or any similar cement, and silicious sand, oxide of iron, and a chloride either of iron, manganese, or calcium, as described in Letters Patent granted me October 29, 1879, No. 221,096, for improvement in concrete pavements; or both or either of the blocks may be formed of the combination of pure asphalt or bitumen,

silicious sand, carbonate of lime, or the specified equivalent, talcose silicate, coal-ashes, and a metallic oxide and chloride, as set forth in said patent, and which compound is preferred for certain climates and conditions.

Various modifications may be made in the manner of laying the block B Without sacrificing the advantages of my invention, the essential feature of which consistsin having three or more of the said blocks B furnish bearing for each of the paving or surface blocks.

,Having thus fully described the invention, what I claim, and desire to secure by Letters Patent, is-

1. Paving-blocks formed of concrete, having their upper and lower longitudinal and transverse edges beveled, so as to form, when laid, V-shaped channels running at right angles to each other, and adapted to be reversed at will, substantially as herein specified, for the purpose set forth.

2. The foundation described, formed of concrete blocks ot'ri ght-an gled parallelogram form laid with relation to each other in such a man ner that each paving-block will bear upon three or more ofthe said foundation-blocks, substantially as set forth.

3. The pavementformed ofthe paving-blocks D, having upper and lower beveled edges, d, in combination with the foundation formed of blocks B, arranged in relation to the said paving-blocks in such a manner ,that each ot the latter will bear upon three or'more ot' the foundation-blocks B, and with an intervening layer of sand, as and for the purposes set forth.

In testimony whereof I affix my signature in presence ot' two witnesses.

ANTONIO PELLETIER.

Witnesses:

J. R. NOTTINGHAM, WILLIAM FITCH. 

